Jeremy Corbyn has launched his 10-point policy plan in Glasgow as he promises a "new kind of politics" if he wins the Labour leadership contest.
A copy is being sent to all Labour members in a bid to secure their vote as the party sends out the first ballot papers.
The "Standing to Deliver"policies include:
Growth not austerity – with a national investment bank to help create tomorrow's jobs and reduce the deficit fairly. Fair taxes for all.
A lower welfare bill through investment and growth
Action on climate change
Public ownership of railways and in the energy sector
Decent homes for all in public and private sectors by 2025 through a big house-building programme and controlling rents.
A foreign policy that prioritises justice and assistance.
Fully-funded NHS, integrated with social care, with an end to privatisation in health.
Protection at work including an end to zero hours contracts
Equality for all
A life-long national education service for decent skills and opportunities, universal childcare, the abolition of student fees, restoring grants, and funding adult skills training.
The left-winger has emerged as the surprise frontrunner to take control of the party on September 12.
His rivals have clashed over how to halt his momentum, with Andy Burnham urging a "positive campaign" while Yvette Cooper criticised the left-wing favourite.
Labour has just a single MP left in Scotland after the SNP landslide and it will be a key battleground for whoever becomes to party's new leader.
Speaking ahead of the launch, the backbencher said: "I have chosen Scotland to set out the values and policies I’m standing to deliver, on the day the ballot papers are sent out, because Scotland is one of several examples of how Labour has become disconnected".
The first of more than 600,000 ballot papers for the leadership vote are due to be sent out to long-standing members who have already been verified amid concern about the way the contest is being conducted.
Shadow Health Secretary Mr Burnham, the closest challenger according to polls suggesting Mr Corbyn is on course for a shock victory, received the backing of The Mirror newspaper, while the Guardian has spoken out in support of Mrs Cooper, who is in Liverpool today.
Liz Kendall is preparing to embark on a 72-hour tour to every part of Britain in a bid to revive her campaign, with events in Manchester, Edinburgh and Newcastle on the first day of her whistlestop itinerary.